Safety coal-hole cover



safins rar ori F. MOORE, OF BOSTON, MASSACHUSETTS.

SAFETY COAL-HOLE COVER.

To all whom t may concern:

Be it known that I, F. H. MOORE, of Boston, in the county of Suqolk and State of Massachusetts, have invented certain new and useful Improvements in Covers for Ocal- Holes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in Which- Figure l is a perspective view of the cover as attached to the coal hole. Fig. 2 a vertical section through the same.

Various means have been adopted for the purpose of securing the covers of coal holes to their frames, so that they may be raised when it becomes necessary to open the holes, Without removing the covers entirely fro-m their position and exposing passers by to the danger of falling in. To accomplish this object in a more effectual manner than has heretofore been effected is the object of my present invention, which I will noW proceed to describe.

In the accompanying drawings A, is the coal hole; B, the flag stone or pavement; C the iron frame to Which the cover D, is hinged at it being so arranged that it can rise into a vertical position as in Fig. l, but can go no farther.

E, is a frame or grating, Which is hinged at CZ, and like the cover D, may be raised to a vertical position as in Fig. 1. Then the cover is closed this grating rests upon t-he pin f, as in Fig. 2.

g, g, are rods hinged to the cover D, which when the latter is open are hooked into eyes in the grating E. When the cover is closed these rods are hooked into the staples L, projecting from the masonry of the hole, and thus the rods Which form the side protection of the hole, serve the purpose of locking the cover when it is closed.

It is evident that the above described arrangement forms a complete protection upon all sides of the hole leaving at the same time nothing to obstruct the entrance of the coal upon three sides or upon top.

What I claim as my invention and desire to secure by Letters Patent, is-

The combination of the grating E, and rods g, with the cover, D, operating in the manner substantially as herein set forth.

F. H. MOORE.

IVitnesses:

SAM. COOPER, P. E. TESCHEMACHER. 

